Best Biopic Makeup: From 'Gandhi' To 'The Iron Lady' (PHOTOS)

Sir Anthony Hopkins has transformed himself into Alfred Hitchcock for the newly released biopic "Hitchcock."

While the actor was nearly unrecognizable in his lastest on-screen role, he is certainly not alone in the transformation required to play an historical figure. Indeed, layers of silicone, body suits, fake teeth, fake hair -- as well as painstaking hours spent in makeup -- are the bread and butter of many of the most successful biographical films.

From Mozart's powder white wigs to Frida's unibrow to Hopkins (again) as Nixon, below, is a round up of the most jaw-dropping makeup in biopics.